A kind of indoor artificial propagation method of bream

Abstract

An indoor artificial propagation method of rhodeus comprises the steps of intensive breeding of parent rhodeus, mating of the parent rhodeus, collection of offspring seeds and breeding of the offspring seeds. The method is characterized in that for the intensive breeding of the parent rhodeus, an adult rhodeus population cultured in a pond for one year is taken as a parent rhodeus population, female parent rhodeus individuals with clear ovary outlines and fallopian tubes extending to be tubular as well as male parent rhodeus individuals which can flow milky semen from abdomens when being slightly pressed at abdomens are selected at a ratio of 1:1, clams are released in a parent rhodeus culture pond, the offspring seeds are collected through drawing nets after one month and distributed in offspring seed culture ponds for breeding, opening baits for offspring seed breeding are small fresh-water rotifers filtered by a bolting-silk net with the fineness of 80 meshes, later, rotifers and moina filtered by a bolting-silk net with the fineness of 60 meshes are gradually supplemented, fries are fed with rotifers and copepoda filtered by a bolting-silk net with the fineness of 40 meshes when growing to 15 mm in total length, and the fries can be placed in ponds for conventional culture when being cultured to 30 mm in total length.

Description

technical field [0001] The invention relates to an artificial propagation technique for fishes of the genus Cyprinus subfamily Cyprinidae, in particular to an indoor artificial propagation technique for Cyprinidae. Background technique [0002] squid (Rhodeus ), belonging to Cyprinidae, Cyprinidae, and Subfamily Cyprinidae, is a small omnivorous wild freshwater fish that is distributed in all major water systems, especially in the south of the Yangtze River, and has special breeding habits (egg-laying in the gill flaps of mussels). Seaweed, omnivorous, mainly algae, the food is aquatic plants, leaves of higher plants, algae, sedimentary organic matter, zooplankton, aquatic insects and cladocera, etc. It is useful for controlling algal blooms in eutrophic water bodies and improving river channels. , landscape waters, and the bottom quality of aquaculture ponds have positive effects. In addition, the fish has a marriage color. During the breeding season, the male fish is ex...

AI Technical Summary

Problems solved by technology

[0003] In recent years, factors such as water pollution, overfishing, illegal electricity, explosives, poisonous fish and other factors have seriously affected the natural resources of the squid, and the fecundity of the squid is relatively weak, and its special breeding habits (eggs are laid on the gill flaps of mussels) Middle) has become a bottleneck in the research of artificial reproduction technology, hindering the development of its follow-up scientific research, ecological and economic value

At present, there are no in-depth research reports on artificial propagation technology in China. Therefore, the artificial propagation technology of scallops has become the key to the protection of scallop germplasm resources and the development of large-scale breeding production of scallops, which is of great significance